.impact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 3rem;
  margin-top: 4rem;
}

.impact-item {
  text-align: center;
}

.impact-number {
  font-size: clamp(1.8rem, 3.5vw + 1rem, 3.5rem);
  font-weight: 800;
  color: #5AA678;
  margin-bottom: 0.5rem;
}

.impact-item p {
  font-size: 1rem;
  opacity: 0.8;
  line-height: 1.5;
}
/* ==========================================
   56 Peaks Challenge Page
   ========================================== */

.peaks-hero {
  background-image: linear-gradient(rgba(10, 20, 50, 0.58), rgba(10, 20, 50, 0.88)), url('Peaks-2.webp');
}

.peaks-overview {
  padding: 4rem 0 1rem;
}

.peaks-intro-text {
  text-align: center;
  font-size: 1.1rem;
  line-height: 1.9;
  opacity: 0.65;
  max-width: 680px;
  margin: 2.5rem auto 0;
}

.peaks-section {
  padding: 3rem 0 6rem;
}

/* Long scroll (56 cards): defer off-screen paint without CLS from a fixed intrinsic guess */
.page-56-peaks .peaks-section {
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.peaks-section-title {
  text-align: center;
  font-size: clamp(1.4rem, 2.5vw + 0.6rem, 2rem);
  color: #5AA678;
  margin-bottom: 0.6rem;
  letter-spacing: 0.01em;
}

.peaks-section-sub {
  text-align: center;
  opacity: 0.5;
  font-size: 0.92rem;
  margin-bottom: 3rem;
}

/* Peaks grid */
.peaks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.peaks-sentinel {
  grid-column: 1 / -1;
  height: 1px;
  width: 100%;
  visibility: hidden;
  pointer-events: none;
}

/* Peak card — hidden until revealed by IntersectionObserver */
.peak-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 12px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.55s ease, transform 0.55s ease,
              border-color 0.3s ease, box-shadow 0.3s ease;
}

.peak-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

.peak-card:hover {
  border-color: rgba(90, 166, 120, 0.35);
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.35);
}

.peak-card:focus-visible {
  outline: 2px solid rgba(90, 166, 120, 0.85);
  outline-offset: 3px;
}

/* Stagger by column */
.peaks-grid .peak-card:nth-child(3n + 2) { transition-delay: 0.11s; }
.peaks-grid .peak-card:nth-child(3n + 3) { transition-delay: 0.22s; }

.peak-image-wrapper {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: #0a1530;
}

.peak-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
  transition: transform 0.55s ease;
}

.peak-card:hover .peak-image-wrapper img {
  transform: scale(1.05);
}

.peak-badge {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  background: rgba(5, 12, 35, 0.82);
  border: 1px solid rgba(90, 166, 120, 0.5);
  color: #5AA678;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.22rem 0.55rem;
  border-radius: 4px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  user-select: none;
}

.peak-body {
  padding: 1.3rem 1.4rem 1.5rem;
}

.peak-header {
  margin-bottom: 0.9rem;
}

.peak-header h3 {
  font-size: 1.05rem;
  color: white;
  font-weight: 600;
  margin-bottom: 0.18rem;
  line-height: 1.3;
}

.peak-name-sub {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.38);
  font-style: italic;
}

.peak-stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem 0.7rem;
  margin-bottom: 0.95rem;
  padding: 0.75rem 0.85rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.055);
}

.peak-stat-item {
  display: flex;
  align-items: center;
  gap: 0.38rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.68);
}

.peak-stat-item svg {
  width: 14px;
  height: 14px;
  min-width: 14px;
  color: #5AA678;
  flex-shrink: 0;
  stroke-width: 2;
  display: inline-block;
  vertical-align: middle;
}

.peak-summary {
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0;
}

/* "Explore" link on challenge card */
.challenge-card-link {
  display: inline-block;
  margin-top: 1.1rem;
  color: #5AA678;
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.22s ease;
}

.challenge-card-link::after {
  content: ' →';
}

.challenge-card-link:hover {
  color: white;
}

/* Planning challenge card variant */
.challenge-card-planning .challenge-badge {
  background: rgba(100, 160, 220, 0.15);
  color: #64A0DC;
  border-color: rgba(100, 160, 220, 0.3);
}

.challenge-card-planning .challenge-icon {
  color: #64A0DC;
}

.challenge-card-planning:hover {
  background: rgba(100, 160, 220, 0.07);
  border-color: rgba(100, 160, 220, 0.3);
}

.challenge-card-planning .progress-fill {
  background: linear-gradient(to right, #64A0DC, #3880B8);
}

.challenge-card-planning .challenge-card-link {
  color: #64A0DC;
}

/* Peaks page responsive */
@media (max-width: 1024px) {
  .peaks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .peaks-grid .peak-card:nth-child(3n + 2),
  .peaks-grid .peak-card:nth-child(3n + 3) {
    transition-delay: 0s;
  }
  .peaks-grid .peak-card:nth-child(2n + 2) {
    transition-delay: 0.11s;
  }
}

@media (max-width: 560px) {
  .peaks-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .peaks-grid .peak-card:nth-child(2n + 2) {
    transition-delay: 0s;
  }
}

/* Final peak card — Musala highlight */
.peak-card-final {
  border-color: rgba(90, 166, 120, 0.35);
  background: rgba(90, 166, 120, 0.06);
}

.peak-card-final .peak-badge {
  background: rgba(90, 166, 120, 0.25);
  border-color: rgba(90, 166, 120, 0.8);
  color: #7dcf9a;
}

/* Peaks overview — force 4 columns in one row */
.peaks-overview .impact-grid {
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 0;
}

@media (max-width: 700px) {
  .peaks-overview .impact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
  padding: 1.5rem;
}

.lightbox.active {
  display: flex;
}

.lightbox-img {
  max-width: 92vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7);
  cursor: default;
  display: block;
}

.lightbox-close {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 1.4rem;
  line-height: 1;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
  z-index: 2001;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox-caption {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.88rem;
  white-space: nowrap;
  pointer-events: none;
}

/* Cards cursor pointer for lightbox */
.peak-card {
  cursor: pointer;
}

/* Scale down impact numbers in peaks overview to keep all 4 on one row */
.peaks-overview .impact-number {
  font-size: 3.15rem;
}
@media (prefers-reduced-motion: reduce) {
  .peak-card {
    opacity: 1;
    transform: none;
    transition: none;
  }
}